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Alcohol and glutamate

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https://www.readbyqxmd.com/read/28738604/electrochemical-investigation-and-determination-of-procaterol-hydrochloride-on-poly-glutamic-acid-carboxyl-functionalized-multiwalled-carbon-nanotubes-polyvinyl-alcohol-modified-glassy-carbon-electrode
#1
Dexian Kong, Lili Jiang, Yijun Liu, Zeming Wang, Libin Han, Rixin Lv, Jiandi Lin, Chun-Hua Lu, Yuwu Chi, Guonan Chen
Poly(glutamic acid) (P-GLU)/carboxyl functionalized multiwalled carbon nanotubes (MWCNTs-COOH)/polyvinyl alcohol (PVA) modified glassy carbon electrode (GCE) has been successfully prepared and the electrochemical behavior of procaterol hydrochloride (ProH) was studied. The results show that the as-prepared modified electrode exhibits a good electrocatalytic property towards the oxidation of ProH in 0.2M phosphate buffer solution (PBS) (pH 6.0) due to the enhanced oxidation peak current at ~+0.59V. Under optimal reaction conditions, the oxidation peak current of ProH is proportional to its concentration in the linear dynamic ranges of 0...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28738332/neuroprogression-and-immune-activation-in-major-depressive-disorder
#2
Jeffrey H Meyer
Traditionally, the neurobiology of major depressive disorder (MDD) has been largely considered from the perspective of the state of major depressive episodes (MDE) versus being in remission, but the current accumulation of disease markers, largely acquired cross-sectionally, is strongly suggestive of neuroprogressive aspects of MDD. This chapter focuses on the changes in disease markers involved in the reorganization of the nervous system in MDD, including the translocator protein (TSPO; an index of microglial activation), glial fibrillary acidic protein (GFAP; an index of astroglial activation), [11C]harmine (a marker of monoamine oxidase A; MAO-A), and several other indices (metabotropic glutamate receptor 5 [mGluR5], excitatory amino acid transporters, and magnetic resonance imaging spectroscopy measurements) of glutamate dysregulation...
2017: Modern Trends in Pharmacopsychiatry
https://www.readbyqxmd.com/read/28729845/negative-affect-and-excessive-alcohol-intake-incubate-during-protracted-withdrawal-from-binge-drinking-in-adolescent-but-not-adult-mice
#3
Kaziya M Lee, Michal A Coehlo, Noah R Solton, Karen K Szumlinski
Binge-drinking is common in underage alcohol users, yet we know little regarding the biopsychological impact of binge-drinking during early periods of development. Prior work indicated that adolescent male C57BL6/J mice with a 2-week history of binge-drinking (PND28-41) are resilient to the anxiogenic effects of early alcohol withdrawal. Herein, we employed a comparable Drinking-in-the-Dark model to determine how a prior history of binge-drinking during adolescence (EtOH(adolescents)) influences emotionality (assayed with the light-dark box, marble burying test, and the forced swim test) and the propensity to consume alcohol in later life, compared to animals without prior drinking experience...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28687200/ceftriaxone-reduces-alcohol-intake-in-outbred-rats-while-upregulating-xct-in-the-nucleus-accumbens-core
#4
Bethany A Stennett, Jan C Frankowski, Joanna Peris, Lori A Knackstedt
Alcohol addiction is a chronic disease characterized by an inability to regulate drinking. A critical brain region involved in alcohol consumption is the nucleus accumbens (NA). Glutamate transmission in this region regulates alcohol consumption and relapse to alcohol-seeking. Across multiple alcohol-administration rodent models, basal extracellular glutamate levels are increased in the NA during early withdrawal. Glutamate transporter 1 (GLT-1) and system xC-, containing the subunit xCT, regulate NA glutamate levels...
July 4, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28678407/homochiral-metal-organic-frameworks-based-on-amino-acid-ligands-for-hplc-separation-of-enantiomers
#5
Jun-Hui Zhang, Rui-Yu Nong, Bang-Jin Wang, Ping Ai, Sheng-Ming Xie, Li-Ming Yuan
Natural amino acids are well known to form coordination polymers with transition metal ions. In this study, six homochiral metal-organic frameworks constructed from Zn(2+) or Co(2+) ions and various enantiopure amino acid (L-tyrosine, L-histidine, L-tryptophan and L-glutamic acid), namely [Zn(L-tyr)]n (L-tyrZn), [Zn4 (btc)2 (Hbtc)(L-His)2 (H2 O)4 ]·1.5H2 O, {[Zn2 (L-trp)2 (bpe)2 (H2 O)2 ]·2H2 O·2NO3 }n , [Co2 (L-Trp)(INT)2 (H2 O)2 (ClO4 )], [Co2 (sdba)((L-Trp)2 ] and [Co(L-Glu)(H2 O)·H2 O]∞ , were synthesized according to the methods previously reported in the literature...
July 5, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28677164/improving-effect-of-dietary-soybean-phospholipids-supplement-on-hepatic-and-serum-indexes-relevant-to-fatty-liver-hemorrhagic-syndrome-in-laying-hens
#6
Fei Yang, Jiming Ruan, Tiancheng Wang, Junrong Luo, Huabin Cao, Yalu Song, Jianzhen Huang, Guoliang Hu
In order to investigate the effect of dietary soybean phospholipid supplement on hepatic and serum indexes relevant to fatty liver hemorrhagic syndrome (FLHS) in layers, 135 300-day-old Hyline Brown layers were randomly divided into three groups (control, pathology and prevention), and each group had 45 layers with three replicates. Birds in the three groups were respectively fed the control diet, high-energy low-protein diet and high-energy high-protein diet affixed with 3% soybean phospholipid instead of maize...
July 5, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28675386/unique-prefrontal-gaba-and-glutamate-disturbances-in-co-occurring-bipolar-disorder-and-alcohol-dependence
#7
J J Prisciandaro, B K Tolliver, A P Prescot, H M Brenner, P F Renshaw, T R Brown, R F Anton
Bipolar disorder (BD) and alcohol dependence (AD) frequently co-occur, and co-occurring BD and AD are associated with devastating public health costs. Minimal neurobiological research exists to guide the development of effective treatments for this treatment-resistant population. We believe the present study represents the first investigation of prefrontal gamma-aminobutyric acid (GABA) and glutamate levels in co-occurring BD and current AD. The participants were 78 individuals who met DSM-IV criteria for BD I/II and current AD (n=20), BD I/II alone (n=19), current AD alone (n=20) or no diagnosis (n=19)...
July 4, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28668395/gc-ms-based-metabolomics-of-csf-and-blood-serum-metabolic-phenotype-for-a-rat-model-of-cefoperazone-induced-disulfiram-like-reaction
#8
Linsheng Liu, Chenrong Huang, Yicong Bian, Liyan Miao
Cefoperazone is most popularly used in the treatment of complicated infections clinically. Concomitant ingestion of ethnaol and cefoperazone may cause a disulfiram-like reaction. However, very little is known about the possible interactions between cefoperazone treatment and an alcohol with regard to the induction of disulfiram-like reaction. Study of the metabolic impact of cotreatment with cefoperazone and alcohol on animals can facilitate the identification of markers relevant to disulfiram-like reaction...
June 28, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28658981/pharmacotherapy-of-alcoholism-an-update-on-approved-and-off-label-medications
#9
Michael Soyka, Christian A Müller
Only a few medications are available for the treatment of alcohol use disorders (AUDs). Areas covered: This paper discusses approved AUD medications, including the opioid antagonists naltrexone and nalmefene (the latter is licensed for reduction of alcohol consumption only), the putative glutamate receptor antagonist acamprosate and the aldehyde dehydrogenase inhibitor disulfiram. It also covers off-label medications of interest, including topiramate, gabapentin, ondansetron, varenicline, baclofen, sodium oxybate and antidepressants...
July 24, 2017: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/28653778/activatable-near-infrared-probe-for-fluorescence-imaging-of-%C3%AE-glutamyl-transpeptidase-in-tumor-cells-and-in-vivo
#10
Zhiliang Luo, Liandong Feng, Ruibing An, Guanfu Duan, Runqi Yan, Hua Shi, Jian He, Zhengyang Zhou, Changge Ji, Hong-Yuan Chen, Deju Ye
γ-Glutamyl transpeptidase (GGT) is a cell membrane-bound enzyme that is involved in various physiological and pathological processes and is regarded as a potential biomarker for many malignant tumors, precise detection of which is useful for early cancer diagnosis. Herein, we reported a new GGT activatable near-infrared (NIR) fluorescence imaging probe (GANP) by linking of a GGT-recognitive substrate γ-glutamate (γ-Glu) and a NIR merocyanine fluorophore (mCy-Cl) with a self-immolative linker p-aminobenzyl alcohol (PABA)...
June 27, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28643888/combination-of-citrus-polymethoxyflavones-green-tea-polyphenols-and-lychee-extracts-suppresses-obesity-and-hepatic-steatosis-in-high-fat-diet-induced-obese-mice
#11
Min-Hsiung Pan, Guliang Yang, Shiming Li, Ming-Yi Li, Mei-Ling Tsai, Jia-Ching Wu, Vladimir Badmaev, Chi-Tang Ho, Ching-Shu Lai
SCOPE: SlimTrym(®) is a formulated product composed of citrus polymethoxyflavones (PMFs), green tea extract and lychee extract. We investigated the effect of dietary SlimTrym(®) on diet-induced obesity and associated non-alcoholic fatty liver disease (NAFLD) in mice. METHODS AND RESULTS: Male C57BL/6 mice were fed a normal diet (ND), high fat diet (HFD) or HFD containing 0.1% or 0.5% SlimTrym(®) for sixteen weeks. Dietary SlimTrym(®) significantly reduced weight gain and relative perigonadal, retroperitoneal, mesenteric fat weight as well as the size of adipocyte in HFD-fed mice...
June 23, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28640600/horse-liver-alcohol-dehydrogenase-zinc-coordination-and-catalysis
#12
Bryce V Plapp, Baskar Raj Savarimuthu, Daniel J Ferraro, Jon K Rubach, Eric N Brown, S Ramaswamy
During catalysis by liver alcohol dehydrogenase (ADH), a water bound to the catalytic zinc is replaced by the oxygen of the substrates. The mechanism might involve a pentacoordinated zinc or a double-displacement reaction with participation by a nearby glutamate residue, as suggested by studies of human ADH3, yeast ADH1, and some other tetrameric ADHs. Zinc coordination and participation of water in the enzyme mechanism were investigated by X-ray crystallography. The apoenzyme and its complex with adenosine 5'-diphosphoribose have an open protein conformation with the catalytic zinc in one position, tetracoordinated by Cys-46, His-67, Cys-174, and a water molecule...
July 18, 2017: Biochemistry
https://www.readbyqxmd.com/read/28637015/differential-metabonomic-profiles-of-primary-hepatocellular-carcinoma-tumors-from-alcoholic-liver-disease-hbv-infected-and-hcv-infected-cirrhotic-patients
#13
Ding Cao, Can Cai, Mingxin Ye, Junhua Gong, Menghao Wang, Jinzheng Li, Jianping Gong
Our objective was to comparatively profile the metabolite composition of primary hepatocellular carcinoma (HCC) tumors from alcoholic liver disease (ALD), hepatitis B virus (HBV)-infected, and hepatitis C virus (HCV)-infected cirrhotic patients. Primary HCC tumors were collected from ALD, HBV-infected, and HCV-infected cirrhotic patients (n=20 each). High-resolution magic-angle spinning proton nuclear magnetic resonance spectroscopy and metabonomic data analysis were performed to compare HCC tumors from the three groups...
June 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28624587/the-lateral-habenula-and-alcohol-role-of-glutamate-and-m-type-potassium-channels
#14
REVIEW
Avi Shah, Wanhong Zuo, Seungwoo Kang, Jing Li, Rao Fu, Haifeng Zhang, Alex Bekker, Jiang-Hong Ye
Alcohol use disorder (AUD) or alcoholism is a chronic relapsing disorder. Our knowledge of alcoholism hinges on our understanding of its effects on the brain. This review will center on the effects of alcohol in the lateral habenula (LHb), an epithalamic structure that connects the forebrain with the midbrain and encodes aversive signaling. Like many addictive drugs, alcohol has both rewarding and aversive properties. While alcohol's euphoric property is believed to be important for the initiation of drinking, increasing evidence suggests that alcohol's negative affect plays a critical role in excessive drinking and alcohol dependence...
June 14, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28624317/modulatory-effects-of-ampicillin-sulbactam-on-glial-glutamate-transporters-and-metabotropic-glutamate-receptor-1-as-well-as-reinstatement-to-cocaine-seeking-behavior
#15
Alaa M Hammad, Fawaz Alasmari, Yusuf S Althobaiti, Youssef Sari
Glutamatergic system has an important role in cocaine-seeking behavior. Studies have reported that chronic exposure to cocaine induces downregulation of glutamate transporter-1 (GLT-1) and cystine/glutamate exchanger (xCT) in the central reward brain regions. Ceftriaxone, a β-lactam antibiotic, restored GLT-1 expression and consequently reduced cue-induced reinstatement of cocaine-seeking behavior. In this study, we investigated the reinstatement to cocaine (20mg/kg, i.p.) seeking behavior using a conditioned place preference (CPP) paradigm in male alcohol-preferring (P) rats...
June 15, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28606738/engineering-high-level-production-of-fatty-alcohols-by-saccharomyces-cerevisiae-from-lignocellulosic-feedstocks
#16
Leo d'Espaux, Amit Ghosh, Weerawat Runguphan, Maren Wehrs, Feng Xu, Oliver Konzock, Ishaan Dev, Melissa Nhan, Jennifer Gin, Amanda Reider Apel, Christopher J Petzold, Seema Singh, Blake A Simmons, Aindrila Mukhopadhyay, Héctor García Martín, Jay D Keasling
Fatty alcohols in the C12-C18 range are used in personal care products, lubricants, and potentially biofuels. These compounds can be produced from the fatty acid pathway by a fatty acid reductase (FAR), yet yields from the preferred industrial host Saccharomyces cerevisiae remain under 2% of the theoretical maximum from glucose. Here we improved titer and yield of fatty alcohols using an approach involving quantitative analysis of protein levels and metabolic flux, engineering enzyme level and localization, pull-push-block engineering of carbon flux, and cofactor balancing...
July 2017: Metabolic Engineering
https://www.readbyqxmd.com/read/28587348/hepatoprotective-effects-of-litchi-litchi-chinensis-procyanidin-a2-on-carbon-tetrachloride-induced-liver-injury-in-icr-mice
#17
Lih-Geeng Chen, Cheng-Wei Chang, Jwu-Guh Tsay, Brian Bor-Chun Weng
Drug tolerance, lacking liver regenerative activity and inconclusive inhibition of steatosis and cirrhosis by silymarin treatment during chronic liver injury have increased the demand for novel alternative or synergistic treatments for liver damage. Litchi fruit is abundant in polyphenolic compounds and is used in traditional Chinese medicine for treatments that include the strengthening of hepatic and pancreatic functions. Unique polyphenolic compounds obtained from litchi pericarp extract (LPE) were studied in vitro and in vivo for hepatoprotection...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28526611/alcohol-induces-input-specific-aberrant-synaptic-plasticity-in-the-rat-dorsomedial-striatum
#18
Tengfei Ma, Britton Barbee, Xuehua Wang, Jun Wang
Accumulated evidence suggests that the dorsomedial striatum (DMS) of the basal ganglia plays an essential role in pathological excessive alcohol consumption. The DMS receives multiple glutamatergic inputs. However, whether and how alcohol consumption distinctly affects these excitatory afferents to the DMS remains unknown. Here, we used optogenetics to selectively activate the rat medial prefrontal cortex (mPFC) and basolateral amygdala (BLA) inputs in DMS slices, and measured the effects of alcohol consumption on glutamatergic transmission in these corticostriatal and amygdalostriatal circuits...
May 17, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28503197/the-significance-of-proline-and-glutamate-on-butanol-chaotropic-stress-in-bacillus-subtilis-168
#19
Gumpanat Mahipant, Atchara Paemanee, Sittiruk Roytrakul, Junichi Kato, Alisa S Vangnai
BACKGROUND: Butanol is an intensively used industrial solvent and an attractive alternative biofuel, but the bioproduction suffers from its high toxicity. Among the native butanol producers and heterologous butanol-producing hosts, Bacillus subtilis 168 exhibited relatively higher butanol tolerance. Nevertheless, organic solvent tolerance mechanisms in Bacilli and Gram-positive bacteria have relatively less information. Thus, this study aimed to elucidate butanol stress responses that may involve in unique tolerance of B...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28495973/contrasting-the-role-of-xct-and-glt-1-upregulation-in-the-ability-of-ceftriaxone-to-attenuate-the-cue-induced-reinstatement-of-cocaine-seeking-and-normalize-ampa-receptor-subunit-expression
#20
Amber L LaCrosse, Sinead M O'Donovan, Marian T Sepulveda-Orengo, Robert E McCullumsmith, Kathryn J Reissner, Marek Schwendt, Lori A Knackstedt
Long-term treatment with ceftriaxone attenuates the reinstatement of cocaine seeking while increasing the function of the glutamate transporter 1 (GLT-1) and system xC- (Sxc) in the nucleus accumbens core (NAc). Sxc contributes the majority of nonsynaptic extracellular glutamate in the NAc, while GLT-1 is responsible for the majority of glutamate uptake. Here we used antisense to decrease the expression of GLT-1 and xCT (a catalytic subunit of Sxc) to determine the relative importance of both proteins in mediating the ability of ceftriaxone to prevent cue-induced reinstatement of cocaine seeking and normalize glutamatergic proteins in the NAc of rats...
June 14, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
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